Firebase (2017)

While the senseless war rages on in the lush and pathless rainforests of Vietnam, the frail bounds between reality and pure fiction warp, as a battle-scarred platoon of American G.I.s find themselves up against an invisible and well-prepared adversary. Witnesses claim that the lethal foe is lurking in the gloomy woods, taking down the men one by one. What horror have the soldiers encountered?